HANDLING DEVICE FOR HOODS OF A CELL FOR ELECTROLYTIC ALUMINIUM PRODUCTION

摘要

The invention relates to a device (100) for handling the hoods (33) of a cell for producing aluminium by fused bath electrolysis comprising a positioning device (110) and a hood gripping system (160). Said positioning device (110) comprises a vertically guiding member (101), a movable support (120) which is mounted on said guiding member (101) in such a way that it is displaceable at least in a vertical direction by using a hinged arm (130), a first sub-frame (140) which is mounted on the hinged arm (130) in such a way that it is pivotable around a first axis of rotation (A) which is substantially horizontal in operation, wherein said hinged arm (130) is at least remotable from and closable to the first sub-frame (140) of the movable support (120), a motor (141) for pivoting the first sub-frame (140) about said first axis of rotation (A), a second sub-frame (150) mounted on the first sub-frame (140) in such a way that it is displaceable along a first pre-determined translation axis (B) which is substantially horizontal in operation and means for moving the second sub-frame (150) along said first translation axis (B). The hood gripping system (160) is fixed to the second sub-frame (150) and comprises a predetermined arrangement of gripping members (161) for catching a predetermined arrangement of hoods (33) at a predetermined number of fixing points. Said invention makes it possible to carry out an accurate and automated hood handling.